This product category is one of the oldest in modern cosmetics. It emerged mainly due to the development of hygienism in the late 19th century. Let’s take a look back at the history of a modern …
The “aging odor” or nonenal effect
Non-2-enal is an unsaturated aldehyde. It is a colorless liquid largely responsible for the flavor of aged beer and buckwheat. The characterization of this substance in the skin of elderly people will …